Structure of the Atom-Atomic Number and Mass Number [CBSE (Central Board of Secondary Education) Class-9 Science]: Questions 1 - 7 of 7
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Question 1
Question MCQ▾
Unit positive charge carried out the nucleus of an atom is termed as the:
Choices
Choice (4) | Response | |
---|---|---|
a. | Atomic number | |
b. | Protons | |
c. | Both a. and b. are correct | |
d. | Question does not provide sufficient data or is vague |
Question 2
Question MCQ▾
Isobar has different number of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Neutrons | |
b. | Protons | |
c. | Electrons | |
d. | All a., b. and c. are correct |
Question 3
Question MCQ▾
Isotopes are used in:
Choices
Choice (4) | Response | |
---|---|---|
a. | Nuclear reactors as fuel | |
b. | Estimating age of old archaeological samples | |
c. | Both a. and b. are correct | |
d. | Question does not provide sufficient data or is vague |
Question 4
Question MCQ▾
Isotopes used in the treatment of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Cancer | |
b. | AIDS | |
c. | Goitre | |
d. | Both a. and c. are correct |
Question 5
Question MCQ▾
Isotopes of carbon are:
Choices
Choice (4) | Response | |
---|---|---|
a. | 6C13,6C13,6C13 | |
b. | 6C12,6C13,6C14 | |
c. | 6C12,7C12,8C12 | |
d. | Question does not provide sufficient data or is vague |
Question 6
Question 7
Question MCQ▾
Isotopes are the:
Choices
Choice (4) | Response | |
---|---|---|
a. | Atoms of the different elements having different atomic number but the same mass number | |
b. | Atoms of the same element | |
c. | Atoms of the same element having same atomic number but different mass number | |
d. | Question does not provide sufficient data or is vague |